家庭教养模式涉及的两个变量是感情纽带和（）。
A.行为控制
B.伦理关系
C.生活互助
D.品行评价
参考答案：A
The old couple have been married for 50 years and never with each other
A．they had quarreled
B．they have quarreled
C．have they quarreled
D．had they quarreled
读者在借阅文献时，要注意检查所借文献的（）
A.品相，查看是否污损
B.价钱
C.书号
